Process of producing balanced rolls and the like



June 23, 1931. H. FANKBONER 1,811,542

PROCESS OF PRODUCING BALANCED ROLLS AND THEIJIKE Filed Jan. 1:5, 1930 to H m KW.

16 Wisg U'H'ofngga Pat'ente d June 11931 1 L u amwm nentnnnnnnxnommy or: citrcneo irm'mors, 'nssIGNon 'r'o run eossfrnin rine' VIPBESSTGO.', YQF ci-ixceeo; lnni x'rors, 'oonronnrionon ILLINOIS r rnecnss' or rnonncrne nennncnnrn onns AND HE LIKE Application filedZJTafiuary 13,1350. Serial No-.- 1420,'320.

My invention relates to a new and improved, process of producing "balancedrolls and the like, In the manufacture of rolls for use in connection withprintingypresses,

it'has been custoi naryto'employ, a piece of metal pipe forgiving the necessary strength and stiffnessito the roll, such pipe being mounted in position-for rotation by m eans of trunnionsformedin substantially centered position on the outer faces of plugs which are forced into the opposite-ends of I the pipe in alignment with each; other;

With the pipe thus substantially {centered about an axis of rotation-, it;has bGeILPQSSl bleto castuor otherwisefqrm the body of the roll von the pipe, and toaturn-down the; outer face of such bodyif necessaryfor obtaining therequirecl true cylindrical form in concen trio position about the axis of the pipe, any necessary balancing being done after the op? eration of truing the surf-ace; V

' There are, however, .1

V disadvantages with respect to thispiocess;

Inthe first place, it is desirable that the'rolls 1 be handled. no -more thanisabsolutely necessary after the application of the' body material V to; the pipe; on other supporting bar,

andparticularly afterthe truingof thebody to cylindrical form. It will be understoold that such rollsare in many-cases. comparatively heavy and are always liableftoi injury in handling even to the necessary extent. 7 In the "second plaee,-1t-1s-des1rable in inanyqcases,

that theanechztnical; work on the rolllinvolving any turning or other machine. work on the r-netafportion; of'the roll fbe donef'in its, entirety before the rubber or otherzlcoinposi; tion body naterial'is applied, makingf-itIuir-i necessary that. the -rolls; beg returned zto the l metalworking shop or department afterthe applicationof-th'e loody material; This is, particularly important in cases. where the I metal portions ofthe 1 rolls are- -protluced one concern and the bodyg materiali'isapplied by'adiiferentconctrl l 1 Y Ithas-been the objectof invention pro'vide'a newandimproved process of pro:

ducing balanced rolls and the flike by the.

use of whichlmay avoid the necessity for balancingthe rollzaften the applfication of rial is placed in'position.

I inthe claims. practice several] a'n'ced-with respect to said axis v the rubber composition :or other body rnate 1 all of the machine work on the roll involving the cutting ofirneta-l before the hody inate effect this result by the use of steps whi'ch can'be very quickly and very readily carried out without unduly increasingthe cost and without materially complicating the procedure. It is anotherr object offney invention 1 toimprove the method ofprodwring bal aneed rolls. and the like in sundry details objects is set forth in the-following specifi cation, referencebeing made to the 'accornpanying. drawings for: illustration thereof. That which I believe to be new is set forth Inthe drawings Fig; 1 is a longitudinalcentrah section'- throughthe supporting .n iernher ofa-ro11 at apreliminary stage of theproduction of 'the roll by vmyimproved process FigqQ is a longitudinal"central-{section showing the a ddition of a layer ofgmaterial tothe-support l" showing the same parts as are illustratedin Fig. 2 butwiththe .roll'.

trued into concentric form about theMaxis of IOtELlZlOIL and with the -roll; as a whole Fig. is a side viewof one endportio'niof a completed roll, broken away at the} endto show'thefbo'dy material inzsectiongi and j Fig.5 isa sideview of onejend-portionjof a completed roll of slightly different con; ostruction, also "broken away at the end for; ibettershowin'g the construction; a

Referring now -to Figs. 1 to lginclusive,

bal

19 indicates a rough piece ofiinetalpipe havingepliigsflll Inounted in its :ends,' each of said plugs lhaving a. shaft or trunnion 12 formed onwv its outer; face such :position I thereon thattheitwo shafts 1l2 arew inl approximate-"alignment with each other :and

the .pipefisin approximatelycentered-positiOn Withres eQt-totheaxis ofysaid. shafts.

The production of a support comprising bearlngs about Whlch the member is approximately centered constitutes the first step of my improved process. I prefer to produce the support by the use of a pipe as illustrated, but my invention broadly is not limited to this particular form. Ordinarily such support will not be found to be balanced about the axis of the shafts, since there is no necessity for precise accuracy in the production of this part. Accuracy of balance at this stage would not, however, be objectionable. In the drawings, the shafts 12 are shown slightly out of center with respect to the plugs 11, as exemplifying the lack of necessity for accuracy, the inaccuracy being exaggerated in the drawing as compared with ordinary results in practice. Indeed, the plugs with their centered shafts would ordinarily be fairly accurate, there being much more likelihood of inaccuracy in balance in the pipe than in the plug mountings for thepipe.

With the support 10 roughtly centered about an established axis of rotation, a layer 13 of material which can be readily applied and easily machined is placed in position upon the support completely surrounding it at its sides. This layer 13 may be applied by any suitable process available by which it is made to fit snugly on the support at every point so as to fill up any possible irregularities in' the outer race of the support. In the embodiment of my invention as shown in Fig. 2, the layer 13 is applied in the form of a plastic mixture, being plastered on roughly and permitted to harden and dry in position, such material being of substantially the same weight as that of the rubber or composition which is to form the body of my completed roll. I have found that in case rubber is to be used for the body of the roll, the layer 13 may to advantage be formed of water putty. All that is required with respect to the layer 13 in theform of the invention as shown in Fig.3 is that such layer when hardened may hold its form, may have a tight fit at all points on the support, may be easily machined on its surface, and may be of substantially the same weight as that 'of the body of the roll laterto be applied.

After the application'and drying of the layer 13, if the outer face of such layer is not already in concentric form about the axis of the shafts 12, as shown in Fig. 3, in such case said layer is turned down into such concentric form. The roll in such condition is then balanced dynamically about the axis of the shafts 12. In the form of device as shown in said Fig. 3, the balanced effect has been produced by boring out the metal at one side of the plug 11 at one or more points as indicated at 141-. This particular manner of balancing is not a requisite, however, any

suitable method of balancing being sati factory which embodies the correction in or in connection with the metal support as distinguished from a correction in or in connection with the layer 13.

These supports in the condition as shown in Fig. 3 are ready for shipment to the shop or department in which the body material is to be applied to the supports. Inasmuch as the layer 13 of putty or other suitable material is to be removed in any event before the application of the body material, there is no necessity for any undue care with respect to the handling of the parts.

For completing the roll after the balancing operation, all portions of the layer 13 are removed from the support, and the body 15 of rubber or composition of the desired character is cast or otherwise applied to the support in the ordinary manner, care being taken that the body material fit snugly at all points about the support 10, the ordinary steps being taken for insuring that the body shall have the necessary tight anchorage to the support. In case the material of the body 15 is cast in precisely concentric form about the axis of the shafts 12, the resulting roll will be found to be perfectly balanced without the necessity for any further steps, the accuracy of this result depending, of course, upon the accuracy with which the weight of the material of the layer 13 when dried and hardened matches the weight of the material of the body 15 in its finished form If desired, the body 15 may be initially formed oversize, as is usually done when the body is formed of rubber, and may then be turned down into concentric form with respect to the axis of the shafts 12, such layer of rubber being first preferably vulcanized. If the process has been followed with close attention to all the refinements as above set forth, the turned downroll will be found to be in dynamically balanced condition with respect to the axis of the roll.

In Fig. 5 I have shown a slightly different form of structure. In this form, a rough metal pipe 16 provided with plugs 17 having trunnions 18 011 their faces is provided with a layer 19 of Babbitt metal or the like, preferably by being cast in position thereon, the outer face of which layer is very readily turned down into concentric form with respect to the axis of the trunnions. After the layer 19 is brought to its concentric form with respect to the axis of the roll, the roll is balanced in any approved manner, whereupon it is ready for shipment to the shop or department by iwhich the composition body is to be applied. In this case, a rubber composition body 20 is applied directly to the soft metal'layer 19, this soft metal layer having sullicient strength when sup swam has ver little stren thi:inilandxof;itself: I

7 .By the use 13-21, soitinetal for; the: layer-cot? material to .be 'applied'beforethe. turning and balancing operations, .the necessity for, i care;

with; respect to the weight. of suchglnaterial; in comparison I with :the, -weight .of the: mate, rial of the. bodyQO :is eliminated; since such? layer 19 is to be left in position upon the; support.i By -.reason of=, theinse of soitf'm'etal, the; turning; operation emay V be; carried out rapidly I and, 1 with i, slight. expenditure of; powerv After the. application its the; lea; stay;

material 20,; the out-er; face offthis, layer must,

claims, maybe so, limitedby the prior er,

'with respect. to said as s ofiwcourse, be dressed. down into. concentricfi form with respect to thezaxis gof theiroll, unless such "layer 20 has beenicast:orsotheref wise applied in, precisely: concentric iform, abouttheaxis, Whenthelayer 20 is brought to; be in dynamically balanced condition,

since the. sameamount of the bodymaterial, is 'addediat opposite sides of the axis; at every point throughoutvthe lengthaiof the r0115; p

\ While I -prei Ier. to employ; the [process as; above -described, ;.it is to beiunderstood that I ,do not limit my invention; precisely to the. pro dure as outlined, 1 except so {an as, the

a I clairnr a 4 1. The process ofiprodncingt balanced: rolls nd e i c mprising hefl prov siomaboutanetalsupp rt of; a layer Jot, easily applied mat l w th i s ut r su acea oncen r c;

ithtr spec o an e tabli h d x s f: ota-1" psaidis ppcrt, th n ba anc ng said cor-H ed pport w h r spec to, maria-and, then after thei a anc ngope ationp riding a layer; of body; material about]; said; metal upport with. s-o te ri a ee oncent ic 12. The process oflprodiieingfbalanced rol s. n i kQr QmP i$i QIP QV Si ca O aim t l supportma a?! 1 as y ap li d material ,with its outer surface concentric with respectto anbestablished-azris str 2 .11. f: sa d su po t hen ies;vi esaidixws e pp with a spe t said a safi'r/the a cin operation; re or ngjsa l yer from" t ii tanekt ena P P-Wi ding, Meyer of d mater l b st-s d up with its outer;.;,surface concent wit spect to said axis 3; 1 The process otproduciilg balanced- .lrolls nd e ike, c mpris i gtt e prq isio about. a metal upportv of ail yen 79f easi1y 5app1ied inaterialj with its: outer {surface i concentric with:irespecztfto anrestablished axis of-;rota:-.

tion of .said support, then balancing said? covered .Tsupport with =respect to said axis, then after the 'balanci-n goperation removingsaid glayer from the support} and thempro materialiof substantial y f riding V abontsaid-lsuppoliifi ot.alriggiyL 7 esa-meweig tasi thatiofL-the materialgoflsaid; first ilamedlayer with the'Louter surface of 1 said second layer; concentric-with respect to said: axis.

"14;; The process, of. producing balanced rolls and, the like, comprisingqthe provision, 0f

alayerofeasily applied andveasily machined material about a metal. support,then turning said layerdownfserving to make its outer. I

surfaces concentric with respect. to estab-s lishedaxisof rotationofsaid supporaathen v balancingsaid covered support with respect,

to saidfiaxi's andithen after the balancing and-itheclik ;comprising theprovision of a a; layer ofeasily appliedzland easily machined; material about ametal support, then turns;

V ing' said layerdown serving .tomakeits out! toits COIICQIlbBlQfQIIIl, the. roll 'WlllgbQfQllIld er surface. concentrica-with: res'pectvto an operation removinggsaidlayer froin the sup-p. port, 1 and "then providing Fabout' said support aglayer of body material of substantials ly-g;the same weight "as: @that of ll fi t of :said first named layer; witlrthe outer respect to said axis..- r

surfac'ejof said.secondlayerconcentriclwith;

6.. The process ofkproducing balaneedirolls;

and thellike, cornprisinjgithe provision about aimeta-l support ofa. layer'of material of: substantially thesame z weight asii thatof therru-bben composition: to be .used: for. the

body -'of said jfinishedwoll withlits.outer 'lishe'd .aXiSLOf"fOtatlOIInEOfJSaid, support, then: r

surface concentric with respect-Z to 13-11 estab-U- bala-neing said covered support; with respect towsaid axis, then after i the balancing open-w "ation' removing said layer from the "support,-

and then providing' a layer {of said rubber: composition; aboutzsaid,supportwith its outer surtaceuconcentric',"with: respectwto said axis. '7; The process of -producing balancedlrolls, and,.the;]ike, comprising .the, provision." about i at metalxsupport ot a :layer I of material of 115, substantially the same weig-ht as that. of 5 I the. 'rubberfcompositionto2be usedfor the b'odyi-ofzsaid lfinished roll, then turning said layer downqservingto,makerits outerlsurface concentricwith respect totan established axis of rotation or saidsupportgthen balanc-. V

ing said covered supporti'with respectto said axis-then a fterzxthe balancing operation;re-, 7

moving: saidolayeri gnaw the support, and

, thenxprovi'ding a layer of said rubberpome position. about said support withi'its outer surface concentric with respect to said axis, 8; The process ofvprodu'cin'g balanced rolls and the: like, comprising the provision: about a-imetal 1 support ofiia layer x 10f materialuot so i substantially the same weight as that of the rubber composition to-be usedfor the body of said finished roll, then turning said layer down serving to make itsouter surface concentric with respect to an established axis of rotation of said support,then balancing said covered support with respect to said axis, then after the balancing operation removing said layer from the support,-then providing a layer of said rubber composition about said support, then vulcanizing said rubber composition, and then turning the outer surface of said layer down into concentric form with respect to said axis.

9. The process of producing'balanced rolls and the like, comprising the provision about a metal support of a layer of putty with its outer surface concentric with respect to an established axisof rotation of said support, then balancing said covered supportwith respect to said axis, then removing said layer of putty, and then providing a layer of rubber composition'abo-ut said support with its outer surface concentric with respect to said axis. V

10. The process of producing balanced rolls and the like, comprising the provision of a layer of easily applied material about a metal support in the form of a rough bar having bearings at its ends with the outer surface of said layer concentric with respect to said bearings, then balancing said covered support with respect to the axis of said bearings, and then after the balancing operation providing a layer of body material aboutsaid support with its outer surface concentric with respect to said axis.

11. The process of producing balanced rolls and the like, comprising the provision of a layer of easily applied material about a support in the form of a piece'of com mercial pipe provided at its ends with plugs having bearing shafts on their outer faces with the outer surface of said layer concentric with respect to theaxis of said shafts, then balancing said covered. support with respect to said axis, and then after the balancing operation providing a layer of body material about said support with its outer surfaceconcentric with respect to said-:axis.

12. The process of producing balanced rolls and the like, comprising the application about a metal support of a layer of plastic material adaptedto harden in place and bringing said layer to concentric form about an established axis of rotation ,of the support, then balancing said covered support with respect to said axis, and then after thexbalancing operation providing a layer of body material about said support with its outer surface in concentric form With'respect to said axis.

13. The process 'of producing balanced rolls and the like, comprising the application about a metal support of a layer of plastic material adapted to harden in place, then after the hardening of said material dressing down the outerlsurface of the layer into concentric form about an established axis ofrotation of the support, then balancing said covered support with respect to said axis, and then after the balancing operation providing a layer of body material about said metal support with its outer surface in concentric form with respect to said axis.

.14. The process of producing balanced rolls and the like,.comprising the application about a metal "support of a layer of plasticimaterial adapted to harden in place and adapted when hardened and dried to weigh substantially'the same as the material to be used for the'body of the roll and bringing said layer to concentric form about an established axis of rotation of said support, then balancing said covered support with respect to said-axis, then removing said layer from said support, and then providing a layer of said body material about said support with its outer surface in concentric form With respect to said axis. 15. The process of producing balanced rolls and the like, comprising the provision of a layer of putty about a support in the form of a piece of commercial pipe provided'at its ends with plugs having bearing shafts on their outer faces, then after the hardening ,of said putty dressing down the surface into concentric form about the axis of said shafts, then balancing said covered support with respect'to said axis, then removing said layer from'said support, then providing a layer of rubber composition about said support, and then dressing down the surface of said second named layer into concentric form about said axis.

"16. The process of producing balanced rolls and thelike, comprising the provision about a metal support of a layer of easily applied material with its outer surface concentric with respect to an established axis of rotation of said support, then balancing said covered support with respect to said axis, and then providing alayer of body material about said first named layer with its outer surface concentric with respect to said axis.

17. The process 'of producing balanced rolls and the like, comprisingthe' provision about a metal support of a layer of soft-metal with its outer surface concentric with respect to an established axis of rotation of said support, then balancing said covered support with respect to said axis, and then providing a layer of body material about said first named layer with its outer surface concentric with respect to said. axis.

18. The process, of roducing balanced rolls and the like, comprising casting a layer of- Babbitt metal about/a metal support,

turning said layer down into concentric form about an established axis oft rotation of said support, then balancing said cov-" ered support with respect to said axis, and

then providing a layer of body 'material' 3 about said layer of Babbitt metal with its outer surface concentric with respeet'to said port, turning said layer down into concentric l axis.

of soft metal about a roughmetal supf orm about an established axis of rotation of said support, then balancing said covered support with respect to said axis, then providing a layer of rubber composition about said layer of soft metaLand then turning said last named layer of material down into 7 concentric form about said axis.

HARLAND FANKBONER.

The process of producing balanced I rolls and the like, comprising casting a layer 

